simple C# question

what is the equivalent in C# to VB's Is Nothing? Check out
the following code snippet:

private SqlConnection objConn;

if (objConn Is Nothing) {
objConn = new SqlConnection(strConnection);
}

I'm converting my coded from vb to C# and I want to
replace objConn Is Nothing with the C# equivalent? I
trried == NULL, but C# doesn't know NULL. Thanks"Will" <wswelch@.comcast.net> wrote in
news:08ba01c3627a$38a25240$a001280a@.phx.gbl:

> what is the equivalent in C# to VB's Is Nothing? Check out
> the following code snippet:
> private SqlConnection objConn;
> if (objConn Is Nothing) {
> objConn = new SqlConnection(strConnection);
> }
> I'm converting my coded from vb to C# and I want to
> replace objConn Is Nothing with the C# equivalent? I
> trried == NULL, but C# doesn't know NULL. Thanks

Will,

C# is case sensitive. null is all lowercase letters:

if (objConn == null) {
objConn = new SqlConnection(strConnection);
}

Hope this helps.

Chris.
----
C.R. Timmons Consulting, Inc.
http://www.crtimmonsinc.com/
C# uses null (all lowercase). But if you don't initialize a variable it's
going to have an undefined value, make sure you set objConn before you check
it for null (such as in a constructor). If it's an instance variable then it
is going to have a default value but it's better not to rely on that and
always set your variables before using them.

Jerry

"Will" <wswelch@.comcast.net> wrote in message
news:08ba01c3627a$38a25240$a001280a@.phx.gbl...
> what is the equivalent in C# to VB's Is Nothing? Check out
> the following code snippet:
> private SqlConnection objConn;
> if (objConn Is Nothing) {
> objConn = new SqlConnection(strConnection);
> }
> I'm converting my coded from vb to C# and I want to
> replace objConn Is Nothing with the C# equivalent? I
> trried == NULL, but C# doesn't know NULL. Thanks